Providing The Fuel Supply - Buderus Logano plus GB402 Installation And Maintenance Instructions For Contractors

▶ Route all cables through the cable entries to the control unit and
connect in accordance with the connection diagram.
NOTICE: Operating faults through power failure!
▶ When connecting external components to the MC10
control unit, ensure that these components do not
exceed a total maximum power consumption of 5 A.
▶ Secure all cables with cable clips (part of the standard delivery).
1. Insert the cable clip together with the cable from the top into the slot
in the frame.
2. Slide the cable clip downwards.
3. Counterhold.
4. Flip the lever up.
Fig. 22 Securing cables with cable clamps
Inserting the function module
In total, up to 2 function modules can be plugged into the control unit.
Only one mixer module can be used as part of the system. For further
supplementary modules, you require one complete enclosure
(accessory).
Observe the installation instructions of the function
module.
▶ Guide the outer rear hooks of the function module into the tabs on the
control unit [1].
▶ Press the front of the module downwards.
Fig. 23 Inserting the function module
Logano plus GB402 – 6 720 820 700 (2018/01)
Fitting the cover
▶ Push the control unit cover down into the guide rails.
▶ Tighten two screws to secure control unit cover.
Fig. 24 Fitting the cover
6.8
7 747 010 720-34.1RS
▶ Install gas tap R2" [2] in the gas line (GAS). When doing so, prevent
the gas line inside the boiler from becoming twisted.
▶ Connect compensator [1] (recommended) to the gas tap.
▶ Connect the gas line to the gas connection or compensator free of
stress.
▶ Secure the gas line with pipe clips so that the gas connection is free
from any stresses.
▶ Close gas isolation valve.

Providing the fuel supply

DANGER: Risk to life through explosion of flammable
gasses!
▶ Work on components in contact with gas must only
be carried out by certified gas fitters.
▶ Observe all local regulations relating to the gas
connection.
▶ Seal in the gas connections with an approved
sealant.
Subject to local regulations, install thermally activated
shut-off equipment (TAE).
In addition, we recommend the installation of a gas filter
and compensator in the gas line in accordance with local
regulations.
Fitting 6
7 747 010 720-35.1RS
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